Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Patent
1987-11-16
1990-05-08
Strecker, Gerard R.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
52173R, E04D 100, E04D 1300, G01R 3100, G01N 2707
Patent
active
049241745
ABSTRACT:
A hold down device for multi-layered roofs. The hold down device can be modified to afford a water leak detector. A method of using the devices in securing a multi-layered roof is also disclosed.
REFERENCES:
patent: 1477766 (1923-12-01), Pulis
patent: 3238835 (1966-03-01), Rosenberg
patent: 3383863 (1968-05-01), Berry
patent: 3398933 (1968-08-01), Haroldson
patent: 4110945 (1978-09-01), Sheahan
patent: 4166244 (1979-08-01), Woods
patent: 4598273 (1986-07-01), Bryan
Edmonds Warren S.
J. P. Sheahan Assoicates, Inc.
McKellar Robert L.
Strecker Gerard R.
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