Talking smoke detector

Details Talking smoke detector Talking smoke detector

1998-09-16

2000-03-28

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specified housing

340628, 340692, 34069311, G08B 2300

Patent

active

060437502

ABSTRACT:
An angle measurement tool having several components that are assembled to form two moving parts wherein one of the parts is a straight edged member combined with angle measurement means and the other is a straight edged member with both straight edge members sharing a common pivot axis with the angle measurement means and simultaneously providing readings of the miter joint angle, the actual angle formed by the legs, the complementary angle of the actual angle and the supplementary angle of the actual angle.

REFERENCES:
patent: 4896145 (1990-01-01), Lewkowicz
patent: 4904988 (1990-02-01), Nesbit et al.
patent: 4954816 (1990-09-01), Mattison
patent: 5011449 (1991-04-01), Handy et al.
patent: 5726629 (1998-03-01), Yu

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