1
Wahlberg Eric C: Business transaction apparatus. December 5, 1972: US3705384 (132 worldwide citation)

A multiple transaction business machine is provided which includes means for selecting a plurality of transactions, totaling the cost of such transactions and determining the value of payment tendered in satisfaction of the cost of the transactions by payment evaluating means receiving legal tender, ...


2
Wahlberg Eric C: Business transaction apparatus. Fisher Christen & Sabol, March 19, 1974: US3798603 (110 worldwide citation)

A multiple transaction business machine is provided which includes means for selecting a plurality of transactions, totaling the cost of such transactions and determining the value of payment tendered in satisfaction of the cost of the transactions by payment evaluating means receiving legal tender, ...


3
Wahlberg Eric C: Apparatus for transacting business. Fisher Christen & Sabol, July 30, 1974: US3826344 (94 worldwide citation)

Apparatus for transacting business by the use of a standard currency, credit cards, checks, bank drafts, deposit vouchers, large denomination paper currency or foreign currency including means for registering a credit against an account or the cost of items to be purchased and means for remotely con ...


4
Wahlberg Eric C: Surface projectile game apparatus. April 4, 1972: US3653665 (10 worldwide citation)

A game wherein a plurality of first bodies such as balls or discs are positioned within a first area having a limiting boundary and surrounded by a second area from which a second body is propelled into contact with the first bodies to drive the first bodies from the first area. Holes in the surface ...


5
Wahlberg Eric C: Speed reducer and positioning device. August 22, 1972: US3686608 (4 worldwide citation)

Two mechanical elements are mounted for independent rotation in the same direction about a common a axis. The difference of the rates of rotation of the two mechanical elements is converted into a resultant mechanical rate of rotation of an output shaft. An electrical element may be mounted on each ...


6
Wahlberg Eric C: Powered fishing reel. Miller Alfred E, April 1, 1975: US3874610 (3 worldwide citation)

A self-contained powered fishing reel having an auxiliary manual operating mechanism. The reel, motor, drive mechanism, power source, and power connections may be contained as a complete unit in a housing which may be selectively mounted on any fishing pole of standard design. The reel includes a fl ...


7
Wahlberg Grace A, Wahlberg Eric C: Teaching and learning aid. Miller Alfred E, October 21, 1975: US3913246 (2 worldwide citation)

A teaching and learning aid having a plurality of character imprinted tapes aligned and individually movable through a viewing area so located as to provide a continuous correlation of characters as chosen and individually moved into the viewing area, to provide the spelling of the chosen word, or t ...


8
Wahlberg Eric C: Alarm device for window or door lock. September 7, 1971: US3603958 (2 worldwide citation)

A unitary alarm device for use with window or door locks which signals unauthorized unlocking, opening or removal. The device is incorporated in the nonoperating portion of the lock assembly which may be used in present installations or new installations without alteration to structures. The device ...