The police say that the possession or sale of tear gas violates a law against noxious chemicals that could be used in an assault.
The clerics have long held that the sale of organs violates Islamic law.
Federal safety officials say that they do not think the device is a good idea but that its sale violates no law.
As part of its study to determine if the sale would violate antitrust laws, the commission asked for more information at about 5 o'clock Friday afternoon.
But the company said it had canceled the contract, and a Government official said the sale might not have violated West German export laws.
The sale to Kessler, which is a physical rehabilitation center, violates that agreement, he said.
China has also complained that the sale violates a 1982 agreement under which the United States promised to reduce its weapons sales to Taiwan.
The import, sale and distribution of mislabeled pesticide-treated products violate federal pesticide regulations and will be subject to fines.
The funds contend the sale violates their rights as secured creditors.
Such a sale would violate the strict arms embargo the Security Council imposed on Iraq in 1990.