Here:
http://www.andersonpower.com/company/corporate-history.html
Corporate History
1877
Anderson Power Products began when the company converted an old brewery in downtown Boston into a foundry. One of the first projects was to cast various parts for the Boston Trolley Transit System.
Product development and inventions such as the trolley pole, invented by Johan M. Anderson in 1890, put us on the map. The trolley pole was used in the overhead system of electric railways, providing a simple compact, efficient and durable supporting mechanism. APP received multiple awards for the Anderson brothers’ innovative trolley and railway designs.
APP Trolley Pole
1953
An inventor by the name of Edward D. "Don" Winkler, working for Albert & J.M. Anderson Mfg. Co, filed a patent for the first Storage Battery Connector (SB®-2). The introduction of the SB-2 saw its roots in a request from industrial fork lift manufacturers for a more robust connection. Variations on this pioneering little two-piece device have powered everything from forklifts to wheelchairs to golf carts. It has evolved numerous times and been imitated even more. Even today, companies are still "introducing" their own, often inferior, versions of Winkler’s invention from 50 years ago.
Our Storage Battery connector saw a number of different iterations in the 50’s and 60’s, including the single piece SB50 design which featured the extra-high heat resistance of General Electric’s Lexan material, the single piece SB350 with four different voltage keys, and the SB175 with contacts that were now made of pure copper (replacing brass contacts). During this period, the SB connector had gained wide acceptance in the forklift industry and had for all intents and purposes replaced spring-loaded button contact and pin/socket contact technologies.
So, "Johan M. Anderson"
http://www.google.com/patents/US697962
...and of course, can't forget his "Trolley-line breaker"
https://www.google.com/patents/US528767
