Wind-bell

Details Wind-bell Wind-bell

1994-11-21

1995-10-03

Word, A. Hugo

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Aural, i.e., audible

D11141

Patent

active

D03628205

REFERENCES:
patent: D272810 (1984-02-01), Stilson
patent: D285669 (1986-09-01), Brockmann
patent: D317419 (1991-06-01), Ronzheimer
patent: D324000 (1992-02-01), Kvistad
patent: 3876080 (1975-04-01), Hultberg et al.
patent: 4149632 (1979-04-01), Junstull et al.
patent: 4967633 (1990-11-01), Jewell, Jr.

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