Guide for the placement of shingles on a roof

Details Guide for the placement of shingles on a roof Guide for the placement of shingles on a roof

1991-02-04

1993-08-24

Douglas, Alan P.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

D10 71

Patent

active

D03386350

REFERENCES:
patent: D211829 (1968-07-01), Alexander
patent: D311873 (1990-11-01), Arend
patent: 2887781 (1959-05-01), Mills
patent: 4110911 (1978-09-01), Sucheck
patent: 4183144 (1990-01-01), Barnett, III
patent: 4541217 (1985-09-01), Stewart
patent: 4656808 (1987-04-01), Mansfield
patent: 4785606 (1988-11-01), Burton

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