Telephonic communications – Centralized switching system – Structure of equipment
Patent
1989-02-06
1990-02-27
Dwyer, James L.
Telephonic communications
Centralized switching system
Structure of equipment
379332, 361119, 439709, H04Q 114
Patent
active
049052756
ABSTRACT:
A laminar type telephone protector block of quick clip type including grounding means incorporated into the individual laminae, and a novel protector module of gas tube type communicating with said grounding means.
REFERENCES:
patent: 3005180 (1961-10-01), Dreher
patent: 3226669 (1965-12-01), Lutz
patent: 3439313 (1969-04-01), Fischer
patent: 4047789 (1977-09-01), Glaesel
patent: 4313147 (1982-01-01), Uchida et al.
patent: 4715830 (1987-12-01), De Luca
patent: 4813071 (1989-03-01), De Luca
Meyerhoefer Carl
Neuwirth Helmuth
Dwyer James L.
Porta Systems Corp.
Temko Charles E.
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