Nova Patents
BR7205166D0

Audio signal quality indicating circuit

Abstract

This record has no abstract on file.

Term

Term ended

Projected expiry passed 1 August 1987, 39.1 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

5 members in 4 offices

This recordMember, by publication datePriority claim

Priority claims1

Priority claims
DocumentOfficeKindDate
16816771United States of AmericaA

Members5

Family members, oldest first
DocumentOfficeKind
DE2237404A1GermanyA1
US3729682AUnited States of AmericaA
BR7205166D0This recordBrazilD0
GB1361124AUnited KingdomA
DE2237404C2GermanyC2