
Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Beckman Instruments (American, 20th Century)



Dow Chemical Company (American, 19th/20th Century)


Dow Chemical Company (American, 19th/20th Century)


![Problem… Solution Result… [June-August]](https://mdl.artvee.com/ft/915293il.jpg)
Hercules Incorporated (American, 20th Century)
![Problem… Solution Result… [January]](https://mdl.artvee.com/ft/915292il.jpg)
Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)
![Problem… Solution Result… [May-July]](https://mdl.artvee.com/ft/915296il.jpg)
Hercules Incorporated (American, 20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)

Dow Chemical Company (American, 19th/20th Century)



Dow Chemical Company (American, 19th/20th Century)