Powr Ladder, Inc.
Manufacturer of a power ladder which can be used as an hoist or elevator. Includes product description and user manual.
http://www.powrladder.com/

Arcing on a Jacob's Ladder.
Thesis by Rafael Bräg at the University of Canterbury, New Zealand in cooperation with the Universität Karlsruhe, Institut für Elektrotechnik und Hochspannungstechnik.
http://www.braeg.de/e_s/index.html

American Ladder Institute
Trade organization representing North American ladder manufacturers. Includes manufacturer database, safety resources, newsletters, and standards information.
http://www.americanladderinstitute.org/

The Grippster Company LLC
Supply a ladder safety grippster to minimize sudden slipping or sliding when the extension ladder is placed on curved surfaces like trees, poles, columns, pipes, or gutters.
http://www.grippster.com/

Polemonium caeruleum
flower height, colour, season, classification
http://www.theseedsite.co.uk/profile224.html

Jacob's Ladder
(Climbing Arc) Construction informative page on these very dangerous devices.
http://www.repairfaq.org/sam/jacobs.htm

Bird Ladder and Equipment
Your one-stop shop for all of your construction needs.
http://www.birdladder.com

Goshen Stamping Co. Inc.
Goshen Stamping Co. was Incorporated in 1923. Located in a 100,000 sq. ft. plant in Goshen IN, we have become a leading supplier of metal stampings to the ladder, educational map, and recreational vehicle industries. In addition the automotive and rubber industries continue to develop as major customers of our metal stampings. Our 100 associates working on two shifts give us tremendous flexibility in serving the needs of our customers. Continued expertise in metal stamping and die design allow us to position ourselves as leaders in our industryplant in Goshen IN, we have become a leading supplier of metal stampings to the ladder, educational map, and recreational vehicle industries. In addition the automotive and rubber industries continue to develop as major customers of our metal stampings. Our 100 associates working on two shifts give us tremendous flexibility in serving the needs of our customers. Continued expertise in metal stamping and die design allow us to position ourselves as leaders in our industry
http://www.goshenstamping.com/

MicroSHADOW Research
MicroSHADOW
http://www.microshadow.com

Werner Ladder Company
Werner Ladder Co. is the world's leading manufacturer and distributor of fiberglass, aluminum and wood climbing products.
http://www.wernerladder.com/