CONDUCTING SIGHTSEEING TOURS WHICH FEATURE

Brand	Owner	Address	Description
HISTORY CHALLENGE	Boston Duck Tours, Limited Partnership	790 Boylston Street, Plaza level Fairfield Apartment Building Boston MA 02199	conducting sightseeing tours which feature local historical information;HISTORY;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A fuel cell has an ion-conducting membrane comprising an ion-conducting region and a non-ion-conducting region. The ion-conducting region is formed by a plurality of ion-conducting passageways that extend through the membrane. The passageways are filled with ion-conducting material and may be surrounded by non-ion conducting material. The membrane may comprise a substrate of non-ion-conducting material that is penetrated by openings, each opening providing a corresponding one of the passageways.