Filed: June 5, 1929PORTLAND CEMENT AND OIL-WELL CEMENTOwned by: YOSEMITE PORTLAND CEMENT CORPORATIONSerial Number: 71285127
Filed: June 5, 1929PORTLAND CEMENT AND OIL-WELL CEMENTSerial Number: 71285128
Filed: June 5, 1929PORTLAND CEMENT AND OIL-WELL CEMENTSerial Number: 71285129