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Q R S MUSIC COMPANY

Overview
  • Total Patents
    27
About

Q R S MUSIC COMPANY has a total of 27 patent applications. Its first patent ever was published in 1919. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets consumer goods, control and packaging and shipping are AMERICAN PLAYER ACTION COMPANY, BULL FRANK WESLEY and COLDMAN HENRY CHARLES.

Patent filings in countries

World map showing Q R S MUSIC COMPANYs patent filings in countries
# Country Total Patents
#1 Canada 11
#2 United States 11
#3 United Kingdom 5

Patent filings per year

Chart showing Q R S MUSIC COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Pletcher Thomas M 7
#2 Bloch Isabelle Mckee 3
#3 Spaeth Charles 2
#4 Mckee Bloch Isabelle 2
#5 Roberts Lee S 2
#6 Kavanaugh Thomas E 1
#7 Clark Ernest G 1
#8 Turnell Julius A 1
#9 Smith Irving M 1
#10 Clarke Hagey James 1

Latest patents

Publication Filing date Title
GB202281A Improvements in music rolls for automatic players
GB199737A An improved self-interpreted music record
US1506080A Music-roll-box clip
GB198696A Improvements in music rolls for automatic players
GB199385A Improvements in music rolls for automatic players
US1656390A Music terminal and clasp
GB198983A Improvements in music rolls for automatic players
US1600424A Music-roll terminal and clasp
US1670380A Music roll
US1584073A Instruction roll
US1610584A Music-roll terminal and clasp
US1542029A Instruction roll
US1416759A Music-roll-printing machine
US1404934A Spool flange
US1461241A Means for instruction with respect to musical instruments
US1337591A Hand stamping device
CA231897A Instruction music roll
CA240773A Expression mark for perforated rolls
CA239762A Music terminal
CA275944A Thermionic tube