Bell

Details Bell Bell

1995-01-30

1995-10-10

Word, A. Hugo

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

D11 58, D21160

Patent

active

D03630382

REFERENCES:
patent: D242570 (1976-11-01), Pui
patent: D277496 (1985-02-01), Daugherty
patent: D335621 (1995-02-01), Huang
patent: D337738 (1993-07-01), Shyan

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