Does anybody know what year caterpillar started making their own blades?

Caterpillar bought out Russel Grader Manf. in 1928 and the first No.12 grader was built in 1938

Thanks but we were arguing about dozer attached blades mfd by caterpillar themselves Thanks Scotty

I may be way off but working around Cats it seemed their own blades started appearing after the D4 6U & 7U tractors came out in 1947 and possibly the D2s in that era. Before that in earlier dozers it seemed the LaPlante Choate blades were on them but again I have no idea what years they may have switched to their own dozer blades.

Well then they built their first grader 1938 with aquistion of Russel, first loader in 1951 when they bought out Trackson, 1993 they bought Anchor Coupling to built their own Hyd. hoses and couplings, 1991 they bought Barber-Greene to have their own paving machines, 1990 they bought Balderson to have their own specail attachments, 1981 the bought Solar Turbines from IH to enter the tubine market,1972 they entered the excavator to the lineup, 1966 they enter the ellivating scraper market, 1965 the bought Towmotor Co. and entered the forklift market, 1962 they built their first off hwy truck, 1962 first Hdy. Scraper built, 1955 first pipelayer, 1940 first wheel tractor DW10, 1945 they announced plans to build their own line of bulldozers,rippers,scrapers & CCU with first D8 dozer 1946 , D7 1947, D6 1946,D4 1947 No.18 ripper 1947, CCU 1945

Wille is a walking Caterpillar Encyclopedia! GWH

My D2 5U had a blade and used cylinders to raise the blade by pushing on a extension of it that extended past the rear mounting point.

The blade had a piece of steel welded to the top front of the blade with the name HOLT.

Ill look through the computer and post what ever pics I can find asap.

Here you go in case you cant find yours there were made by a Holt Manf.Co from up in Oregon nothing to do with Cat. Inc. . Hard to see uch of this one but its on a 22 and you can see the tag on the top of blade

They started in 1946

www.franklin-treefarmer.com/company.htm