Combined casing and operational support for a pocket calculator

Details Combined casing and operational support for a pocket calculator Combined casing and operational support for a pocket calculator

1979-10-12

1981-03-31

Hix, L. T.

Registers

Miscellaneous

Numeral wheels

150 52R, 206305, 248676, G06C 502

Patent

active

042595681

ABSTRACT:
A combined casing and operational support for a pocket calculator, comprising a rectangular bottom and a rectangular cover connected with the bottom through a hinge joint and including a first part close to the hinge joint, and a second part having a greater length than the first part and being connected therewith through a further hinge joint. By turning the two parts of the cover in the same direction in the two hinge joints, the casing may be brought into a raised operative position, in which the first part of the cover projects below the bottom, whereas the side of the second part of the cover opposite said further hinge joint is connected with the bottom by mutually cooperating interlocking means comprising a pin on the cover part and a cut-out in the bottom.

REFERENCES:
patent: 3923152 (1975-12-01), Minneman
patent: 4044980 (1977-08-01), Cummins
patent: 4071065 (1978-01-01), Halbich
patent: 4165554 (1979-08-01), Faget
patent: 4184594 (1980-01-01), Hehn

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