R W CRABTREE AND SONS LTD has a total of 13 patent applications. Its first patent ever was published in 1920. It filed its patents most often in Canada, France and United States. Its main competitors in its focus markets textiles and paper are PEREIRE GUSTAVE, PREC SCREEN MACHINES INC and WEB TEC KK.
# | Country | Total Patents | |
---|---|---|---|
#1 | Canada | 11 | |
#2 | France | 1 | |
#3 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Textiles and paper |
# | Technology | |
---|---|---|
#1 | Printing machines |
# | Name | Total Patents |
---|---|---|
#1 | Murrell John T | 3 |
#2 | Battey Alfred P | 2 |
#3 | Turrall George | 2 |
#4 | Willis Claude E F | 2 |
#5 | Stevenson Derek A | 1 |
#6 | Crosskey Albert A | 1 |
#7 | Phythian Thomas E | 1 |
#8 | Dew Robert N | 1 |
#9 | Gladden John A | 1 |
#10 | Bennett Thomas R | 1 |
Publication | Filing date | Title |
---|---|---|
US1583172A | Inking mechanism for printing machines | |
CA669078A | Sheet register mechanism | |
CA547199A | Sheet-feeding apparatus | |
CA592816A | Web supply mechanism | |
CA637360A | Web-renewing mechanism | |
CA553780A | Rotary stapling mechanism | |
CA519678A | Stapling mechanism | |
CA547198A | Pneumatic sheet-taking apparatus | |
CA771032A | Web renewing mechanism | |
CA551905A | Printing blanket securing means | |
CA888329A | Printing machines | |
CA554523A | Stapling mechanism |