EXHIBIT 10.13 NOTE EXTENSION AGREEMENT This Agreement is made and entered into this 23rd day of July 1999, by and between MHL DEVELOPMENT CORPORATION (F/K/A MICROHELIX LABS INC.) an Oregon corporation and RICHARD G. SASS, an Oregon resident HEREIN...

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                                                                   EXHIBIT 10.13

                            NOTE EXTENSION AGREEMENT

This Agreement is made and entered into this 23rd day of July 1999, by and
between MHL DEVELOPMENT CORPORATION (F/K/A MICROHELIX LABS INC.) an Oregon
corporation and XXXXXXX X. XXXX, an Oregon resident HEREIN AFTER "MAKERS" and
THE CONFEDERATED TRIBES OF THE GRAND RONDE COMMUNITY OF OREGON herein after
called "HOLDER."

WHEREAS MAKERS did execute a Promissory Note dated July 22, 1998 in the amount
of Six Hundred Sixty Seven thousand Five Hundred Dollars ($667,500.00) in favor
of MAKER, and;

WHEREAS MAKERS desires to renew and extend said Note to January 22, 2000 and
HOLDER has agreed, and;

WHEREAS MAKERS agree to pay all accrued interest on the Note current by July 23,
1999 and pay future quarterly interest payments on October 22, 1999 and January
22, 2000, and;

NOW, THEREFORE, in consideration of the herein stated mutual covenants and
promises, and other good and valuable consideration, it is AGREED AS FOLLOWS:

        1.      The above referenced Promissory Note is hereby extended to
                January 22, 2000 whereupon all accrued interest and principal
                shall be due in full.

        2.      Such extension is granted subject to HOLDER bringing said Note
                current and paying accrued interest on said Note to July 22,
                1999.

        3.      Such extension is granted subject to HOLDER'S preservation and
                retention of its security position in the form of the now
                existing UCC-1 with all rights and remedies as contained therein
                including, but not limited to, the right to take possession of
                the therein named property.

        4.      Nothing in this Agreement shall otherwise impair or modify the
                herein cited Promissory Note except as to the due date as
                therein stated and consistent with the terms hereof.

Dated this 6th day of Oct., 1999.

AGREED TO BY:
MHL DEVELOPMENT CORPORATION (F/K/A MICROHELIX LABS, INC.)

/s/ XXXXXXX X. XXXX
---------------------------------------
by:  Xxxxxxx X. Xxxx
its President

/s/ XXXXXXX X. XXXX
---------------------------------------
Xxxxxxx X. Xxxx, Individually



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AGREED TO BY:
THE CONFEDERATED TRIBES OF THE GRAND RONDE COMMUNITY OF OREGON

/s/ XXXXXX XXXXXXXX
---------------------------------------
by:  Xxxxxx Xxxxxxxx
its:  Finance Officer



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