Leonard v. S. G. Frantz Co.

Plaintiffs, contractors to build cranes for Navy yards and shipyards engaged in war work, employed defendants to manufacture brakes used on the cranes to prevent loads from falling. The corporate and individual defendant Frantz had been engaged in the manufacture of a magnetic separating device called the “ Frantz Ferro-Filter ” and continued that work in part while also engaged in making crane brakes for plaintiffs.

When the contract terminated, plaintiffs sued defendants for claimed overpayments totalling $19,276.08. Defendants, denying any overpayment, counterclaimed for $14,962.78 as still…